Model 233.52.100 TA features a Gas Density Transmitter attached to the side of the Gas Density Monitor's pressure connection.
It functions fully as a standard GD-10 Gas Density Transmitter, however, the combination allows for both instruments to obtain a density reading through a single connection to the tank.
WIKA transmitter GD-10 L (with L-plug connection) is shown in the drawing below, however GD-10 C (with attached cable) or GD-10 F (with robust field case) can also be used.